Checkpoint

Things are currently broken because of import cycles. I'm going to
need to revisit how the plugin loader works, but I wanted to make
a checkpoint before I start breaking things again.
This commit is contained in:
Austin Roberts 2021-06-25 17:05:17 -05:00
parent ad8719a64a
commit 091a2f4884
6 changed files with 346 additions and 109 deletions

View File

@ -27,6 +27,7 @@ import (
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/plugins"
)
// StateProcessor is a basic Processor, which takes care of transitioning
@ -70,22 +71,27 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
blockContext := NewEVMBlockContext(header, p.bc, nil)
vmenv := vm.NewEVM(blockContext, vm.TxContext{}, statedb, p.config, cfg)
// Iterate over and process the individual transactions
plugins.PreProcessBlock(block)
for i, tx := range block.Transactions() {
msg, err := tx.AsMessage(types.MakeSigner(p.config, header.Number), header.BaseFee)
if err != nil {
plugins.BlockProcessingError(tx, block, err)
return nil, nil, 0, fmt.Errorf("could not apply tx %d [%v]: %w", i, tx.Hash().Hex(), err)
}
statedb.Prepare(tx.Hash(), block.Hash(), i)
plugins.PreProcessTransaction(tx, block, i)
receipt, err := applyTransaction(msg, p.config, p.bc, nil, gp, statedb, header, tx, usedGas, vmenv)
if err != nil {
plugins.BlockProcessingError(tx, block, err)
return nil, nil, 0, fmt.Errorf("could not apply tx %d [%v]: %w", i, tx.Hash().Hex(), err)
}
plugins.PostProcessTransaction(tx, block, i, receipt)
receipts = append(receipts, receipt)
allLogs = append(allLogs, receipt.Logs...)
}
// Finalize the block, applying any consensus engine specific extras (e.g. block rewards)
p.engine.Finalize(p.bc, header, statedb, block.Transactions(), block.Uncles())
plugins.PostProcessBlock(block)
return receipts, allLogs, *usedGas, nil
}

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@ -53,6 +53,7 @@ import (
"github.com/ethereum/go-ethereum/p2p/dnsdisc"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/plugins"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/rpc"
)
@ -145,7 +146,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
chainDb: chainDb,
eventMux: stack.EventMux(),
accountManager: stack.AccountManager(),
engine: ethconfig.CreateConsensusEngine(stack, chainConfig, &ethashConfig, config.Miner.Notify, config.Miner.Noverify, chainDb),
engine: plugins.CreateConsensusEngine(stack, chainConfig, &ethashConfig, config.Miner.Notify, config.Miner.Noverify, chainDb),
closeBloomHandler: make(chan struct{}),
networkID: config.NetworkId,
gasPrice: config.Miner.GasPrice,
@ -190,6 +191,7 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
Preimages: config.Preimages,
}
)
plugins.UpdateBlockchainVMConfig(&vmConfig)
eth.blockchain, err = core.NewBlockChain(chainDb, cacheConfig, chainConfig, eth.engine, vmConfig, eth.shouldPreserve, &config.TxLookupLimit)
if err != nil {
return nil, err

View File

@ -4,71 +4,34 @@ import (
"context"
"math/big"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
// Backend interface provides the common API services (that are provided by
// both full and light clients) with access to necessary functions.
type Backend interface {
// General Ethereum API
Downloader() *downloader.Downloader
SuggestGasTipCap(ctx context.Context) (*big.Int, error)
ChainDb() ethdb.Database
AccountManager() *accounts.Manager
ExtRPCEnabled() bool
RPCGasCap() uint64 // global gas cap for eth_call over rpc: DoS protection
RPCTxFeeCap() float64 // global tx fee cap for all transaction related APIs
UnprotectedAllowed() bool // allows only for EIP155 transactions.
// Blockchain API
SetHead(number uint64)
HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error)
HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error)
HeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Header, error)
CurrentHeader() *types.Header
CurrentBlock() *types.Block
BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error)
BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error)
BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error)
StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error)
StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error)
GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error)
GetTd(ctx context.Context, hash common.Hash) *big.Int
GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, cfg *vm.Config) (*vm.EVM, func() error, error)
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription
// Transaction pool API
SendTx(ctx context.Context, signedTx *types.Transaction) error
GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
GetPoolTransactions() (types.Transactions, error)
GetPoolTransaction(txHash common.Hash) *types.Transaction
GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)
Stats() (pending int, queued int)
TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)
SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
// Filter API
BloomStatus() (uint64, uint64)
GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error)
ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
ChainConfig() *params.ChainConfig
Engine() consensus.Engine
type StateDB interface {
Error() error
GetLogs(hash common.Hash) []*types.Log
Logs() []*types.Log
Preimages() map[common.Hash][]byte
Exist(addr common.Address) bool
Empty(addr common.Address) bool
GetBalance(addr common.Address) *big.Int
GetNonce(addr common.Address) uint64
TxIndex() int
BlockHash() common.Hash
GetCode(addr common.Address) []byte
GetCodeSize(addr common.Address) int
GetCodeHash(addr common.Address) common.Hash
GetState(addr common.Address, hash common.Hash) common.Hash
GetProof(addr common.Address) ([][]byte, error)
GetProofByHash(addrHash common.Hash) ([][]byte, error)
GetStorageProof(a common.Address, key common.Hash) ([][]byte, error)
GetStorageProofByHash(a common.Address, key common.Hash) ([][]byte, error)
GetCommittedState(addr common.Address, hash common.Hash) common.Hash
HasSuicided(addr common.Address) bool
ForEachStorage(addr common.Address, cb func(key, value common.Hash) bool) error
GetRefund() uint64
AddressInAccessList(addr common.Address) bool
SlotInAccessList(addr common.Address, slot common.Hash) (addressPresent bool, slotPresent bool)
}

View File

@ -2,11 +2,15 @@ package plugins
import (
"plugin"
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/consensus/ethash"
// "github.com/ethereum/go-ethereum/eth/ethconfig"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"gopkg.in/urfave/cli.v1"
"flag"
"io/ioutil"
@ -17,7 +21,6 @@ import (
)
type APILoader func(*node.Node, Backend) []rpc.API
type Subcommand func(*cli.Context, []string) error
type TracerResult interface {
vm.Tracer
@ -26,29 +29,42 @@ type TracerResult interface {
type PluginLoader struct{
Tracers map[string]func(*state.StateDB)TracerResult
Plugins []plugin.Plugin
Tracers map[string]func(StateDB)TracerResult
StateHooks []interface{} // TODO: Set interface
ChainEventHooks []interface{} // TODO: Set interface
RPCPlugins []APILoader
// RPCPlugins []APILoader
Subcommands map[string]Subcommand
Flags []*flag.FlagSet
CreateConsensusEngine func(stack *node.Node, chainConfig *params.ChainConfig, config *ethash.Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine
UpdateBlockchainVMConfig func(*vm.Config)
PreProcessBlockList []func(*types.Block)
PreProcessTransactionList []func(*types.Transaction, *types.Block, int)
BlockProcessingErrorList []func(*types.Transaction, *types.Block, error)
PostProcessTransactionList []func(*types.Transaction, *types.Block, int, *types.Receipt)
PostProcessBlockList []func(*types.Block)
}
var defaultPluginLoader *PluginLoader
var DefaultPluginLoader *PluginLoader
func NewPluginLoader(target string) (*PluginLoader, error) {
pl := &PluginLoader{
RPCPlugins: []APILoader{},
Plugins: []plugin.Plugin,
// RPCPlugins: []APILoader{},
Subcommands: make(map[string]Subcommand),
Tracers: make(map[string]func(*state.StateDB)TracerResult),
Tracers: make(map[string]func(StateDB)TracerResult),
Flags: []*flag.FlagSet{},
// CreateConsensusEngine: ethconfig.CreateConsensusEngine,
UpdateBlockchainVMConfig: func(cfg *vm.Config) {},
}
files, err := ioutil.ReadDir(target)
if err != nil {
log.Warn("Could not load plugins directory. Skipping.", "path", target)
return pl, nil
}
setConsensus := false
setUpdateBCVMCfg := false
for _, file := range files {
fpath := path.Join(target, file.Name())
if !strings.HasSuffix(file.Name(), ".so") {
@ -70,16 +86,6 @@ func NewPluginLoader(target string) (*PluginLoader, error) {
pl.Flags = append(pl.Flags, flagset)
}
}
fn, err := plug.Lookup("GetAPIs")
if err == nil {
apiLoader, ok := fn.(func(*node.Node, Backend) []rpc.API)
if !ok {
log.Warn("Could not cast plugin.GetAPIs to APILoader", "file", fpath)
} else {
pl.RPCPlugins = append(pl.RPCPlugins, APILoader(apiLoader))
}
} else { log.Debug("Error retrieving GetAPIs for plugin", "file", fpath, "error", err.Error()) }
sb, err := plug.Lookup("Subcommands")
if err == nil {
subcommands, ok := sb.(*map[string]func(*cli.Context, []string) error)
@ -96,7 +102,7 @@ func NewPluginLoader(target string) (*PluginLoader, error) {
}
tr, err := plug.Lookup("Tracers")
if err == nil {
tracers, ok := tr.(*map[string]func(*state.StateDB)TracerResult)
tracers, ok := tr.(*map[string]func(StateDB)TracerResult)
if !ok {
log.Warn("Could not cast plugin.Tracers to `map[string]vm.Tracer`", "file", fpath)
} else {
@ -108,12 +114,89 @@ func NewPluginLoader(target string) (*PluginLoader, error) {
}
}
}
ce, err := plug.Lookup("CreateConsensusEngine")
if err == nil {
cce, ok := ce.(func (stack *node.Node, chainConfig *params.ChainConfig, config *ethash.Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine)
if !ok {
log.Warn("Could not cast plugin.CreateConsensusEngine to appropriate function", "file", fpath)
} else {
if setConsensus {
log.Warn("CreateConsensusEngine redeclared", "file", fpath)
}
pl.CreateConsensusEngine = cce
setConsensus = true
}
}
vmcfgu, err := plug.Lookup("UpdateBlockchainVMConfig")
if err == nil {
vmcfgfn, ok := vmcfgu.(func(*vm.Config))
if !ok {
log.Warn("Could not cast plugin.UpdateBlockchainVMConfig to appropriate function", "file", fpath)
} else {
if setUpdateBCVMCfg {
log.Warn("UpdateBlockchainVMConfig redeclared", "file", fpath)
}
pl.UpdateBlockchainVMConfig = vmcfgfn
setUpdateBCVMCfg = true
}
}
prepb, err := plug.Lookup("PreProcessBlock")
if err == nil {
prepbfn, ok := prepb.(func(*types.Block))
if !ok {
log.Warn("Could not cast plugin.PreProcessBlock to appropriate function", "file", fpath)
} else {
pl.PreProcessBlockList = append(pl.PreProcessBlockList, prepbfn)
}
}
prept, err := plug.Lookup("PreProcessTransaction")
if err == nil {
preptfn, ok := prept.(func(*types.Transaction, *types.Block, int))
if !ok {
log.Warn("Could not cast plugin.PreProcessTransaction to appropriate function", "file", fpath)
} else {
pl.PreProcessTransactionList = append(pl.PreProcessTransactionList, preptfn)
}
}
bpe, err := plug.Lookup("BlockProcessingError")
if err == nil {
bpefn, ok := bpe.(func(*types.Transaction, *types.Block, error))
if !ok {
log.Warn("Could not cast plugin.BlockProcessingError to appropriate function", "file", fpath)
} else {
pl.BlockProcessingErrorList = append(pl.BlockProcessingErrorList, bpefn)
}
}
prept, err := plug.Lookup("PostProcessTransaction")
if err == nil {
preptfn, ok := prept.(func(*types.Transaction, *types.Block, int, *types.Receipt))
if !ok {
log.Warn("Could not cast plugin.PostProcessTransaction to appropriate function", "file", fpath)
} else {
pl.PostProcessTransactionList = append(pl.PostProcessTransactionList, preptfn)
}
}
prepb, err := plug.Lookup("PostProcessBlock")
if err == nil {
prepbfn, ok := prepb.(func(*types.Block))
if !ok {
log.Warn("Could not cast plugin.PostProcessBlock to appropriate function", "file", fpath)
} else {
pl.PostProcessBlockList = append(pl.PostProcessBlockList, prepbfn)
}
}
}
return pl, nil
}
func Initialize(target string) (err error) {
defaultPluginLoader, err = NewPluginLoader(target)
DefaultPluginLoader, err = NewPluginLoader(target)
return err
}
@ -126,8 +209,8 @@ func (pl *PluginLoader) RunSubcommand(ctx *cli.Context) (bool, error) {
}
func RunSubcommand(ctx *cli.Context) (bool, error) {
if defaultPluginLoader == nil { return false, fmt.Errorf("Plugin loader not initialized") }
return defaultPluginLoader.RunSubcommand(ctx)
if DefaultPluginLoader == nil { return false, fmt.Errorf("Plugin loader not initialized") }
return DefaultPluginLoader.RunSubcommand(ctx)
}
func (pl *PluginLoader) ParseFlags(args []string) bool {
@ -138,38 +221,100 @@ func (pl *PluginLoader) ParseFlags(args []string) bool {
}
func ParseFlags(args []string) bool {
if defaultPluginLoader == nil {
if DefaultPluginLoader == nil {
log.Warn("Attempting to parse flags, but default PluginLoader has not been initialized")
return false
}
return defaultPluginLoader.ParseFlags(args)
return DefaultPluginLoader.ParseFlags(args)
}
func (pl *PluginLoader) GetAPIs(stack *node.Node, backend Backend) []rpc.API {
apis := []rpc.API{}
for _, apiLoader := range pl.RPCPlugins {
apis = append(apis, apiLoader(stack, backend)...)
}
return apis
}
func GetAPIs(stack *node.Node, backend Backend) []rpc.API {
if defaultPluginLoader == nil {
log.Warn("Attempting GetAPIs, but default PluginLoader has not been initialized")
return []rpc.API{}
}
return defaultPluginLoader.GetAPIs(stack, backend)
}
func (pl *PluginLoader) GetTracer(s string) (func(*state.StateDB)TracerResult, bool) {
func (pl *PluginLoader) GetTracer(s string) (func(StateDB)TracerResult, bool) {
tr, ok := pl.Tracers[s]
return tr, ok
}
func GetTracer(s string) (func(*state.StateDB)TracerResult, bool) {
if defaultPluginLoader == nil {
func GetTracer(s string) (func(StateDB)TracerResult, bool) {
if DefaultPluginLoader == nil {
log.Warn("Attempting GetTracer, but default PluginLoader has not been initialized")
return nil, false
}
return defaultPluginLoader.GetTracer(s)
return DefaultPluginLoader.GetTracer(s)
}
// func CreateConsensusEngine(stack *node.Node, chainConfig *params.ChainConfig, config *ethash.Config, notify []string, noverify bool, db ethdb.Database) consensus.Engine {
// if DefaultPluginLoader == nil {
// log.Warn("Attempting CreateConsensusEngine, but default PluginLoader has not been initialized")
// return ethconfig.CreateConsensusEngine(stack, chainConfig, config, notify, noverify, db)
// }
// return DefaultPluginLoader.CreateConsensusEngine(stack, chainConfig, config, notify, noverify, db)
// }
func UpdateBlockchainVMConfig(cfg *vm.Config) {
if DefaultPluginLoader == nil {
log.Warn("Attempting UpdateBlockchainVMConfig, but default PluginLoader has not been initialized")
return
}
DefaultPluginLoader.UpdateBlockchainVMConfig(cfg)
}
func (pl *PluginLoader) PreProcessBlock(block *types.Block) {
for _, fn := range pl.PreProcessBlockList {
fn(block)
}
}
func PreProcessBlock(block *types.Block) {
if DefaultPluginLoader == nil {
log.Warn("Attempting PreProcessBlock, but default PluginLoader has not been initialized")
return
}
DefaultPluginLoader.PreProcessBlock(block)
}
func (pl *PluginLoader) PreProcessTransaction(tx *types.Transaction, block *types.Block, i int) {
for _, fn := range pl.PreProcessTransactionList {
fn(tx, block, i)
}
}
func PreProcessTransaction(tx *types.Transaction, block *types.Block, i int) {
if DefaultPluginLoader == nil {
log.Warn("Attempting PreProcessTransaction, but default PluginLoader has not been initialized")
return
}
DefaultPluginLoader.PreProcessTransaction(tx, block, i)
}
func (pl *PluginLoader) BlockProcessingError(tx *types.Transaction, block *types.Block, err error) {
for _, fn := range pl.BlockProcessingErrorList {
fn(tx, block, err)
}
}
func BlockProcessingError(tx *types.Transaction, block *types.Block, err error) {
if DefaultPluginLoader == nil {
log.Warn("Attempting BlockProcessingError, but default PluginLoader has not been initialized")
return
}
DefaultPluginLoader.BlockProcessingError(tx, block, err)
}
func (pl *PluginLoader) PostProcessTransaction(tx *types.Transaction, block *types.Block, i int, receipt *types.Receipt) {
for _, fn := range pl.PostProcessTransactionList {
fn(tx, block, i, receipt)
}
}
func PostProcessTransaction(tx *types.Transaction, block *types.Block, i int, receipt *types.Receipt) {
if DefaultPluginLoader == nil {
log.Warn("Attempting PostProcessTransaction, but default PluginLoader has not been initialized")
return
}
DefaultPluginLoader.PostProcessTransaction(tx, block, i, receipt)
}
func (pl *PluginLoader) PostProcessBlock(block *types.Block) {
for _, fn := range pl.PostProcessBlockList {
fn(block)
}
}
func PostProcessBlock(block *types.Block) {
if DefaultPluginLoader == nil {
log.Warn("Attempting PostProcessBlock, but default PluginLoader has not been initialized")
return
}
DefaultPluginLoader.PostProcessBlock(block)
}

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@ -0,0 +1,74 @@
package plugins
import (
"context"
"math/big"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
// Backend interface provides the common API services (that are provided by
// both full and light clients) with access to necessary functions.
type Backend interface {
// General Ethereum API
Downloader() *downloader.Downloader
SuggestGasTipCap(ctx context.Context) (*big.Int, error)
ChainDb() ethdb.Database
AccountManager() *accounts.Manager
ExtRPCEnabled() bool
RPCGasCap() uint64 // global gas cap for eth_call over rpc: DoS protection
RPCTxFeeCap() float64 // global tx fee cap for all transaction related APIs
UnprotectedAllowed() bool // allows only for EIP155 transactions.
// Blockchain API
SetHead(number uint64)
HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error)
HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error)
HeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Header, error)
CurrentHeader() *types.Header
CurrentBlock() *types.Block
BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error)
BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error)
BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error)
StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error)
StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error)
GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error)
GetTd(ctx context.Context, hash common.Hash) *big.Int
GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, cfg *vm.Config) (*vm.EVM, func() error, error)
SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription
// Transaction pool API
SendTx(ctx context.Context, signedTx *types.Transaction) error
GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
GetPoolTransactions() (types.Transactions, error)
GetPoolTransaction(txHash common.Hash) *types.Transaction
GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)
Stats() (pending int, queued int)
TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)
SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription
// Filter API
BloomStatus() (uint64, uint64)
GetLogs(ctx context.Context, blockHash common.Hash) ([][]*types.Log, error)
ServiceFilter(ctx context.Context, session *bloombits.MatcherSession)
SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription
SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription
ChainConfig() *params.ChainConfig
Engine() consensus.Engine
}

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@ -0,0 +1,47 @@
package rpcloader
import (
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/plugins"
)
type APILoader func(*node.Node, Backend) []rpc.API
func GetRPCPluginsFromLoader(pl *plugins.PluginLoader) []APILoader {
result := []APILoader{}
for _, plug := range pl.Plugins {
fn, err := plug.Lookup("GetAPIs")
if err == nil {
apiLoader, ok := fn.(func(*node.Node, Backend) []rpc.API)
if !ok {
log.Warn("Could not cast plugin.GetAPIs to APILoader", "file", fpath)
} else {
result = append(result, APILoader(apiLoader))
}
} else { log.Debug("Error retrieving GetAPIs for plugin", "file", fpath, "error", err.Error()) }
}
}
func GetRPCPlugins() []APILoader {
if plugins.DefaultPluginLoader == nil {
log.Warn("Attempting GetRPCPlugins, but default PluginLoader has not been initialized")
return []APILoader{}
}
return GetRPCPluginsFromLoader(plugins.DefaultPluginLoader)
}
func GetAPIsFromLoader(pl *plugins.PluginLoader, stack *node.Node, backend Backend) []rpc.API {
apis := []rpc.API{}
for _, apiLoader := range pl.RPCPlugins {
apis = append(apis, apiLoader(stack, backend)...)
}
return apis
}
func GetAPIs(stack *node.Node, backend Backend) []rpc.API {
if plugins.DefaultPluginLoader == nil {
log.Warn("Attempting GetAPIs, but default PluginLoader has not been initialized")
return []rpc.API{}
}
return GetAPIsFromLoader(plugins.DefaultPluginLoader, stack, backend)
}